I' ve, also, had problems with the map in the control room being effected by alt-tabbing out of the game. If I use a second display (Old 14" monitor, gathering dust in attic) to display windows desktop and the log entries, will this work OK?
Also, there has been, recently, on Subsim forums, a copy of a genuine KTB posted -
http://www.uboatarchive.net/U-516logGerman.htm
Is it possible for your log entries to look more authentic, perhaps incorporating similar fonts or formatting? This would be great for immersion value.
Many thanks for all the great work you've done on SH3.